Gadget fest: The DJ Rob da Bank picks his favourite festival gizmos

Philips Shoqbox portable wireless speaker, £160 A lot of people
bring music systems with them now for when they are back at their tents and
having a little late-night party. We do have to shut the music off at
certain hours to respect the neighbours. This speaker is rugged and wireless
so you can connect it to play from an iPhone or whatever device you’ve got. philips.co.uk